61272290

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{409}}^1$

素因数の和:698

約数の個数: 32

約数和(自身を含む): 112648320

約数和(自身を除く): 51376030

約数列:

[1, 2, 5, 10, 71, 142, 211, 355, 409, 422, 710, 818, 1055, 2045, 2110, 4090, 14981, 29039, 29962, 58078, 74905, 86299, 145195, 149810, 172598, 290390, 431495, 862990, 6127229, 12254458, 30636145, 61272290]

約数ペア:

[(1, 61272290), (2, 30636145), (5, 12254458), (10, 6127229), (71, 862990), (142, 431495), (211, 290390), (355, 172598), (409, 149810), (422, 145195), (710, 86299), (818, 74905), (1055, 58078), (2045, 29962), (2110, 29039), (4090, 14981)]